During Tuesday's storm, a woman was struck by lightning in Germantown at Blunt Road and Brink Road while she was walking her dog. She's in serious condition at a local hospital.

Heavy rain and wind whipped through Montgomery County, knocking down trees and pulling out power lines, making the evening commute difficult for drivers. Some people said Tuesday's storm was unexpected.

"It just came out of nowhere," said one man, "and 15 minutes later, I saw three trees on the ground."